CVE-2025-48802 MEDIUM

CVE-2025-48802: Windows SMB Server Spoofing Vulnerability

Vendor Microsoft
Product Windows 11 version 22H2
Weakness CWE-295
Published July 8, 2025
Last update February 13, 2026
View on NVD All CVEs

CVSS base score

6.5/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality None
Integrity High

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N/E:U/RL:O/RC:C

What the vulnerability does

01Description

Improper certificate validation in Windows SMB allows an authorized attacker to perform spoofing over a network.

Key dates

02Disclosure timeline

July 8, 2025 CVE published
February 13, 2026 Record updated